<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0,user-scalable=no,minimal-ui">
    <title>小憨包</title>
    <link rel="icon" href="images/favico.ico">
    <!--不同屏幕尺寸根字体设置-->
    <script src="./js/base.js"></script>
    <!--element-ui的样式-->
    <link rel="stylesheet" href="../backend/plugins/element-ui/index.css" />
    <!--引入vant样式-->
    <link rel="stylesheet" href="styles/vant.min.css"/>
    <!-- 引入样式  -->
    <link rel="stylesheet" href="styles/index.css" />
    <!--本页面内容的样式-->
    <link rel="stylesheet" href="styles/main.css" />
  </head>
  <body>
    <div id="main" class="app">
      <div class="divHead">
        <img src="./images/user.png" @click="toUserPage"/>
      </div>
      <div class="divTitle">
        <div class="divStatic">
          <img src="./images/logo.png"  class="logo"/>
          <div class="divDesc">
            <div class="divName">小憨包餐厅</div>
            <div class="divSend">
              <span><img src="./images/time.png"/> 距离1.5km</span>
              <span><img src="./images/money.png"/> 配送费6元</span>
              <span><img src="./images/location.png"/> 预计时长12min</span>
            </div>
          </div>
        </div>
        <div class="divDesc">
          简介: 小憨包中餐厅是独立的品牌，定位“大众 化的美食外送餐饮”，旨为顾客打造专业美食。
        </div>
      </div>
      <div class="divBody">
        <div class="divType">
          <ul>
            <li v-for="(item,index) in categoryList" :key="index" @click="categoryClick(index,item.id,item.type)" :class="{active:activeType === index}">{{item.name}}</li>
          </ul>
        </div>
        <div class="divMenu">
          <div>
            <div class="divItem" v-for="(item,index) in dishList" :key="index" @click="dishDetails(item)">
              <el-image :src="imgPathConvert(item.image)" >
                <div slot="error" class="image-slot">
                  <img src="./images/noImg.png"/>
                </div>
              </el-image>
              <div>
                <div class="divName">{{item.name}}</div>
                <div class="divDesc">{{item.description}}</div>
                <div class="divDesc">{{'月销' + (item.saleNum ? item.saleNum : 0)  }}</div>
                <div class="divBottom"><span>￥</span><span>{{item.price/100}}</span></div>
                <div class="divNum">
                  <div class="divSubtract" v-if="item.number > 0">
                    <img src="./images/subtract.png" @click.prevent.stop="subtractCart(item)"/>
                  </div>
                  <div class="divDishNum">{{item.number}}</div>
                  <div class="divTypes" v-if="item.flavors && item.flavors.length > 0 && !item.number " @click.prevent.stop="chooseFlavorClick(item)">选择规格</div>
                  <div class="divAdd" v-else>
                    <img src="./images/add.png" @click.prevent.stop="addCart(item)"/>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>

      </div>
      <div class="divLayer">
        <div class="divLayerLeft"></div>
        <div class="divLayerRight"></div>
      </div>
      <div class="divCart" v-if="categoryList.length > 0">
        <div :class="{imgCartActive: cartData && cartData.length > 0, imgCart:!cartData || cartData.length<1}" @click="openCart"></div>
        <div :class="{divGoodsNum:1===1, moreGoods:cartData && cartData.length > 99}" v-if="cartData && cartData.length > 0">{{ goodsNum }}</div>
        <div class="divNum">
          <span>￥</span>
          <span>{{goodsPrice}}</span>
        </div>
        <div class="divPrice"></div>
        <div :class="{btnSubmitActive: cartData && cartData.length > 0, btnSubmit:!cartData || cartData.length<1}" @click="toAddOrderPage">去结算</div>
      </div>
      <van-dialog v-model="dialogFlavor.show" :show-confirm-button="false" class="dialogFlavor" ref="flavorDialog">
        <div class="dialogTitle">{{dialogFlavor.name}}</div>
        <div class="divContent">
          <div v-for="flavor in dialogFlavor.flavors" :key="flavor.id">
            <div class="divFlavorTitle">{{flavor.name}}</div>
            <span v-for="item in JSON.parse(flavor.value)"
                  :key="item"
                  @click="flavorClick(flavor,item)"
                  :class="{spanActive:flavor.dishFlavor === item}"
            >{{item}}</span>
          </div>
        </div>
        <div class="divBottom">
          <div><span class="spanMoney">￥</span>{{dialogFlavor.price/100}}</div>
          <div @click="dialogFlavorAddCart">加入购物车</div>
        </div>
        <div class="divFlavorClose" @click="dialogFlavor.show = false">
          <img src="./images/close.png"/>
        </div>
      </van-dialog>
      <van-popup v-model="cartDialogShow" position="bottom" :style="{ height: '50%' }" class="dialogCart">
        <div class="divCartTitle">
          <div class="title">购物车</div>
          <div class="clear" @click="clearCart">
            <i class="el-icon-delete"></i> 清空
          </div>
        </div>
        <div class="divCartContent">
          <div v-for="item in cartData" :key="item.id" class="divCartItem">
            <el-image :src="imgPathConvert(item.image)" >
              <div slot="error" class="image-slot">
                <img src="./images/noImg.png"/>
              </div>
            </el-image>
            <div class="divDesc">
              <div class="name">{{item.name}}</div>
              <div class="price">
                <span class="spanMoney">￥</span>{{item.amount}}</div>
            </div>
            <div class="divNum">
              <div class="divSubtract">
                <img src="./images/subtract.png" @click="cartNumberSubtract(item)"/>
              </div>
              <div class="divDishNum">{{item.number}}</div>
              <div class="divAdd">
                <img src="./images/add.png" @click="cartNumAdd(item)"/>
              </div>
            </div>
            <div class="divSplit"></div>
          </div>
        </div>
      </van-popup>
      <van-dialog v-model="detailsDialog.show"
                  :show-confirm-button="false"
                  class="detailsDialog"
                  ref="detailsDialog"
                  v-if="detailsDialog.show"
      >
        <div class="divContainer">
          <el-image :src="imgPathConvert(detailsDialog.item.image)" >
            <div slot="error" class="image-slot">
              <img src="./images/noImg.png"/>
            </div>
          </el-image>
          <div class="title">{{detailsDialog.item.name}}</div>
          <div class="content">{{detailsDialog.item.description}}</div>
        </div>
        <div class="divNum">
          <div class="left">
            <span>￥</span><span>{{detailsDialog.item.price/100}}</span>
          </div>
          <div class="right">
            <div class="divSubtract" v-if="detailsDialog.item.number > 0">
              <img src="./images/subtract.png" @click="subtractCart(detailsDialog.item)"/>
            </div>
            <div class="divDishNum">{{detailsDialog.item.number}}</div>
            <div class="divTypes" v-if="detailsDialog.item.flavors && detailsDialog.item.flavors.length > 0 && !detailsDialog.item.number " @click ="chooseFlavorClick(detailsDialog.item)">选择规格</div>
            <div class="divAdd" v-else>
              <img src="./images/add.png" @click="addCart(detailsDialog.item)"/>
            </div>
          </div>
        </div>
        <div class="detailsDialogClose" @click="detailsDialog.show = false">
          <img src="./images/close.png"/>
        </div>
      </van-dialog>
      <van-dialog v-model="setMealDialog.show"
                  :show-confirm-button="false"
                  class="setMealDetailsDialog"
                  ref="setMealDetailsDialogd"
                  v-if="setMealDialog.show"
      >
        <div class="divContainer">
          <div class="title">{{setMealDialog.item.name}}</div>
          <div class="item" v-for="(item,index) in setMealDialog.item.list" :key="index">
            <el-image :src="imgPathConvert(item.image)">
              <div slot="error" class="image-slot">
                <img src="./images/noImg.png"/>
              </div>
            </el-image>
            <div class="divSubTitle">{{item.name + '(' + item.copies + '份)' }}
              <div class="divPrice">
                <span>￥</span><span>{{item.price/100}}</span>
              </div>
            </div>
            <div class="content">{{item.description}}</div>
          </div>
        </div>
        <div class="divNum">
          <div class="left">
            <span>￥</span><span>{{setMealDialog.item.price/100}}</span>
          </div>
          <div class="right">
            <div class="divSubtract" v-if="setMealDialog.item.number > 0">
              <img src="./images/subtract.png" @click="subtractCart(setMealDialog.item)"/>
            </div>
            <div class="divDishNum">{{setMealDialog.item.number}}</div>
            <div class="divAdd" v-if="setMealDialog.item.number">
              <img src="./images/add.png" @click="addCart(setMealDialog.item)"/>
            </div>
            <div class="addCart"  @click="addCart(setMealDialog.item)" v-if="!setMealDialog.item.number">加入购物车</div>
          </div>
        </div>
        <div class="detailsDialogClose" @click="setMealDialog.show = false">
          <img src="./images/close.png"/>
        </div>
      </van-dialog>
    </div>
    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="../backend/plugins/vue/vue.js"></script>
    <!-- 引入组件库 -->
    <script src="../backend/plugins/element-ui/index.js"></script>
    <!-- 引入vant样式 -->
    <script src="./js/vant.min.js"></script>
    <!-- 引入axios -->
    <script src="../backend/plugins/axios/axios.min.js"></script>
    <script src="./js/request.js"></script>
    <script src="./js/common.js"></script>
    <script src="./api/main.js"></script>
  </body>
  <script>
    new Vue({
      el:'#main',
      data(){
        return {
          //左边菜品类别index
          activeType:0,
          categoryList:[],
          categoryId:undefined,
          dishList:[],
          cartData:[],
          dialogFlavor:{
            name:'',
            flavors:[],
            dishId:undefined,
            price:undefined,
            show:false,
            image:''
          },
          cartDialogShow:false,
          detailsDialog:{
            show:false,
            item:{image:''}
          },
          setMealDialog:{
            show:false,
            item:{}
          },
        }
      },
      computed:{
        goodsNum(){
          let num = 0
          this.cartData.forEach(item=>{
            num += item.number
          })
          if(num <99){
            return num
          }else{
            return '99+'
          }
        },
        goodsPrice(){
          let price = 0
          this.cartData.forEach(item=>{
            price += (item.number * item.amount)
          })
          return price
        }
      },
      created(){
      },
      watch:{
        'dialogFlavor.show'(flag){
          if(flag){
            document.querySelector('.divCart').style.zIndex = 1
          }else{
            document.querySelector('.divCart').style.zIndex = 3000
          }
        },
      },
      mounted(){
        this.initData()
      },
      methods:{
        //初始化数据
        initData(){
          Promise.all([categoryListApi(),cartListApi({})]).then(res=>{
            //获取分类数据
            if(res[0].code === 1){
              this.categoryList = res[0].data
              if(Array.isArray(res[0].data) && res[0].data.length > 0){
                this.categoryId = res[0].data[0].id
                if(res[0].data[0].type === 1){
                  this.getDishList()
                }else{
                  this.getSetmealData()
                }
              }
            }else{
              this.$notify({ type:'warning', message:res[0].msg});
            }
            //获取菜品数据
            if(res[1].code === 1){
              this.cartData = res[1].data
            }else{
              this.$notify({ type:'warning', message:res[1].msg});
            }
          })
        },
        //分类点击
        categoryClick(index,id,type){
          this.activeType = index
          this.categoryId = id
          if(type === 1){//菜品
            this.getDishList()
          }else{
            this.getSetmealData()
          }
        },
        //获取菜品数据
        async getDishList(){
          if(!this.categoryId){
            return
          }
          const res = await dishListApi({categoryId:this.categoryId,status:1})
          if(res.code === 1){
            let dishList = res.data
            const cartData  = this.cartData
            if(dishList.length > 0 && cartData.length > 0){
              dishList.forEach(dish=>{
                cartData.forEach(cart=>{
                  if(dish.id === cart.dishId){
                    dish.number = cart.number
                  }
                })
              })
            }
            this.dishList = dishList
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },
        //获取套餐数据setmealId
        async getSetmealData(){
          if(!this.categoryId){
            return
          }
          const res = await setmealListApi({categoryId:this.categoryId,status:1})
          if(res.code === 1){
            let dishList = res.data
            const cartData  = this.cartData
            if(dishList.length > 0 && cartData.length > 0){
              dishList.forEach(dish=>{
                cartData.forEach(cart=>{
                  if(dish.id === cart.setmealId){
                    dish.number = cart.number
                  }
                })
              })
            }
            this.dishList = dishList
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },
        //获取购物车数据
        async getCartData(){
          const res = await cartListApi({})
          if(res.code === 1){
            this.cartData = res.data
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },
        //菜单中往购物车中添加商品
        async addCart(item){
          let params = {
            amount:item.price/100,//金额
            dishFlavor:item.dishFlavor,//口味  如果没有传undefined
            dishId:undefined,//菜品id
            setmealId:undefined,//套餐id
            name:item.name,
            image:item.image
          }
          if(Array.isArray(item.flavors)){//表示是菜品
            params.dishId = item.id
          }else{//表示套餐 套餐没有口味
            params.setmealId = item.id
          }
          const res = await addCartApi(params)
          if(res.code === 1){
            this.dishList.forEach(dish=>{
              if(dish.id === item.id){
                dish.number = res.data.number||1
              }
            })
            if(this.setMealDialog.show){
              item.number = res.data.number||1
            }
            this.getCartData()
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },

        //菜单中减少选中的商品
        async subtractCart(item){
          let params = {
            dishId:item.id,
          }
          if(!Array.isArray(item.flavors)){
            params = {
              setmealId:item.id,
            }
          }
          const res = await updateCartApi(params)
          if(res.code === 1){
            this.dishList.forEach(dish=>{
              if(dish.id === item.id){
                dish.number = (res.data.number === 0 ? undefined : res.data.number)
              }
            })
            if(this.setMealDialog.show){
              item.number = (res.data.number ===0 ? undefined : res.data.number)
            }
            this.getCartData()
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },

        //展开购物车
        openCart(){
          if(this.cartData.length > 0){
            this.cartDialogShow = true
          }
        },
        //购物车中增加商品数量
        async cartNumAdd(item){
          let params = {
            amount:item.amount,//金额
            dishFlavor:item.dishFlavor,//口味  如果没有传undefined
            dishId:item.dishId,//菜品id
            setmealId:item.setmealId,//套餐id
            name:item.name,
            image:item.image
          }
          const res = await addCartApi(params)
          if(res.code === 1){
            this.dishList.forEach(dish=>{
              if(dish.id === (item.dishId || item.setmealId)){
                dish.number = res.data.number
              }
            })
            this.getCartData()
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },
        //购物车中减少商品数量
        async cartNumberSubtract(item){
          let params = {
            dishId:item.dishId,
            setmealId:item.setmealId,
          }
          const res = await updateCartApi(params)
          if(res.code === 1){
            this.dishList.forEach(dish=>{
              if(dish.id === (item.dishId || item.setmealId)){
                dish.number = (res.data.number === 0 ? undefined : res.data.number)
              }
            })
            this.getCartData()
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },

        //修改商品列表中的数据number
        changeDishList(item){
          for(let ele of this.dishList){
            if(ele.id === (item.setmealId || item.dishId)){
              ele.number = item.number
            }
          }
        },

        //清空购物车
        async clearCart(){
          const res = await clearCartApi()
          if(res.code === 1){
            for(let ele of this.dishList){
              ele.number = undefined
            }
            this.cartData = []
            this.cartDialogShow = false
          }else{
            this.$notify({ type:'warning', message:res.msg});
          }
        },
        //点击选择规格
        chooseFlavorClick(item){
          this.dialogFlavor = {
            name:'',
            flavors:[],
            dishId:undefined,
            price:undefined,
            show:false
          }
          this.dialogFlavor={
            name:item.name,
            flavors:item.flavors,
            dishId:item.id,
            price:item.price,
            show:true,
            image:item.image
          }
        },
        flavorClick(flavor,item){
          flavor.dishFlavor = item
          //强制刷新dialog的dom
          this.dialogFlavor.show = false
          this.dialogFlavor.show = true
        },
        //选择规格加入购物车
        dialogFlavorAddCart(){
          const dialogFlavor = this.dialogFlavor
          let flag = true
          let dishFlavor = []
          dialogFlavor.flavors.forEach(item=>{
            if(item.dishFlavor){
              dishFlavor.push(item.dishFlavor)
            }else{
              flag = false
              this.$notify({ type: 'warning', message: '请选择'+ item.name });
            }
          })
          if(flag){
            this.addCart({
              price:dialogFlavor.price,
              dishFlavor:dishFlavor.join(","),
              id:dialogFlavor.dishId,
              flavors:[],
              image:dialogFlavor.image,
              name:dialogFlavor.name
            })
            this.dialogFlavor.show = false
          }

        },
        //网络图片路径转换
        imgPathConvert(path){
          return imgPath(path)
        },
        //跳转到去结算界面
        toAddOrderPage(){
          if(this.cartData.length > 0){
            window.requestAnimationFrame(()=>{
              window.location.href ='/front/page/add-order.html'
            })
          }
        },
        toUserPage(){
          window.requestAnimationFrame(()=>{
            window.location.href= '/front/page/user.html'
          })
        },
        async dishDetails(item){
          //先清除对象数据，如果不行的话dialog使用v-if
          this.detailsDialog.item = {}
          this.setMealDialog.item = {}
          if(Array.isArray(item.flavors)){
            this.detailsDialog.item = item
            this.detailsDialog.show = true
          }else{
            //显示套餐的数据
            const res = await setMealDishDetailsApi(item.id)
            if(res.code === 1){
              this.setMealDialog.item = {...item,list:res.data}
              this.setMealDialog.show = true
            }else{
              this.$notify({ type:'warning', message:res.msg});
            }
          }

        }

      }
    })
  </script>
</html>
